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<pre><span class="sourceLineNo">001</span>/* ===========================================================<a name="line.1"></a>
<span class="sourceLineNo">002</span> * JFreeChart : a free chart library for the Java(tm) platform<a name="line.2"></a>
<span class="sourceLineNo">003</span> * ===========================================================<a name="line.3"></a>
<span class="sourceLineNo">004</span> *<a name="line.4"></a>
<span class="sourceLineNo">005</span> * (C) Copyright 2000-2011, by Object Refinery Limited and Contributors.<a name="line.5"></a>
<span class="sourceLineNo">006</span> *<a name="line.6"></a>
<span class="sourceLineNo">007</span> * Project Info:  http://www.jfree.org/jfreechart/index.html<a name="line.7"></a>
<span class="sourceLineNo">008</span> *<a name="line.8"></a>
<span class="sourceLineNo">009</span> * This library is free software; you can redistribute it and/or modify it<a name="line.9"></a>
<span class="sourceLineNo">010</span> * under the terms of the GNU Lesser General Public License as published by<a name="line.10"></a>
<span class="sourceLineNo">011</span> * the Free Software Foundation; either version 2.1 of the License, or<a name="line.11"></a>
<span class="sourceLineNo">012</span> * (at your option) any later version.<a name="line.12"></a>
<span class="sourceLineNo">013</span> *<a name="line.13"></a>
<span class="sourceLineNo">014</span> * This library is distributed in the hope that it will be useful, but<a name="line.14"></a>
<span class="sourceLineNo">015</span> * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY<a name="line.15"></a>
<span class="sourceLineNo">016</span> * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public<a name="line.16"></a>
<span class="sourceLineNo">017</span> * License for more details.<a name="line.17"></a>
<span class="sourceLineNo">018</span> *<a name="line.18"></a>
<span class="sourceLineNo">019</span> * You should have received a copy of the GNU Lesser General Public<a name="line.19"></a>
<span class="sourceLineNo">020</span> * License along with this library; if not, write to the Free Software<a name="line.20"></a>
<span class="sourceLineNo">021</span> * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,<a name="line.21"></a>
<span class="sourceLineNo">022</span> * USA.<a name="line.22"></a>
<span class="sourceLineNo">023</span> *<a name="line.23"></a>
<span class="sourceLineNo">024</span> * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. <a name="line.24"></a>
<span class="sourceLineNo">025</span> * Other names may be trademarks of their respective owners.]<a name="line.25"></a>
<span class="sourceLineNo">026</span> *<a name="line.26"></a>
<span class="sourceLineNo">027</span> * ---------<a name="line.27"></a>
<span class="sourceLineNo">028</span> * Week.java<a name="line.28"></a>
<span class="sourceLineNo">029</span> * ---------<a name="line.29"></a>
<span class="sourceLineNo">030</span> * (C) Copyright 2001-2008, by Object Refinery Limited and Contributors.<a name="line.30"></a>
<span class="sourceLineNo">031</span> *<a name="line.31"></a>
<span class="sourceLineNo">032</span> * Original Author:  David Gilbert (for Object Refinery Limited);<a name="line.32"></a>
<span class="sourceLineNo">033</span> * Contributor(s):   Aimin Han;<a name="line.33"></a>
<span class="sourceLineNo">034</span> *<a name="line.34"></a>
<span class="sourceLineNo">035</span> * Changes<a name="line.35"></a>
<span class="sourceLineNo">036</span> * -------<a name="line.36"></a>
<span class="sourceLineNo">037</span> * 11-Oct-2001 : Version 1 (DG);<a name="line.37"></a>
<span class="sourceLineNo">038</span> * 18-Dec-2001 : Changed order of parameters in constructor (DG);<a name="line.38"></a>
<span class="sourceLineNo">039</span> * 19-Dec-2001 : Added a new constructor as suggested by Paul English (DG);<a name="line.39"></a>
<span class="sourceLineNo">040</span> * 29-Jan-2002 : Worked on the parseWeek() method (DG);<a name="line.40"></a>
<span class="sourceLineNo">041</span> * 13-Feb-2002 : Fixed bug in Week(Date) constructor (DG);<a name="line.41"></a>
<span class="sourceLineNo">042</span> * 26-Feb-2002 : Changed getStart(), getMiddle() and getEnd() methods to<a name="line.42"></a>
<span class="sourceLineNo">043</span> *               evaluate with reference to a particular time zone (DG);<a name="line.43"></a>
<span class="sourceLineNo">044</span> * 05-Apr-2002 : Reinstated this class to the JCommon library (DG);<a name="line.44"></a>
<span class="sourceLineNo">045</span> * 24-Jun-2002 : Removed unnecessary main method (DG);<a name="line.45"></a>
<span class="sourceLineNo">046</span> * 10-Sep-2002 : Added getSerialIndex() method (DG);<a name="line.46"></a>
<span class="sourceLineNo">047</span> * 06-Oct-2002 : Fixed errors reported by Checkstyle (DG);<a name="line.47"></a>
<span class="sourceLineNo">048</span> * 18-Oct-2002 : Changed to observe 52 or 53 weeks per year, consistent with<a name="line.48"></a>
<span class="sourceLineNo">049</span> *               GregorianCalendar. Thanks to Aimin Han for the code (DG);<a name="line.49"></a>
<span class="sourceLineNo">050</span> * 02-Jan-2003 : Removed debug code (DG);<a name="line.50"></a>
<span class="sourceLineNo">051</span> * 13-Mar-2003 : Moved to com.jrefinery.data.time package, and implemented<a name="line.51"></a>
<span class="sourceLineNo">052</span> *               Serializable (DG);<a name="line.52"></a>
<span class="sourceLineNo">053</span> * 21-Oct-2003 : Added hashCode() method (DG);<a name="line.53"></a>
<span class="sourceLineNo">054</span> * 24-May-2004 : Modified getFirstMillisecond() and getLastMillisecond() to<a name="line.54"></a>
<span class="sourceLineNo">055</span> *               take account of firstDayOfWeek setting in Java's Calendar<a name="line.55"></a>
<span class="sourceLineNo">056</span> *               class (DG);<a name="line.56"></a>
<span class="sourceLineNo">057</span> * 30-Sep-2004 : Replaced getTime().getTime() with getTimeInMillis() (DG);<a name="line.57"></a>
<span class="sourceLineNo">058</span> * 04-Nov-2004 : Reverted change of 30-Sep-2004, because it won't work for<a name="line.58"></a>
<span class="sourceLineNo">059</span> *               JDK 1.3 (DG);<a name="line.59"></a>
<span class="sourceLineNo">060</span> * ------------- JFREECHART 1.0.x ---------------------------------------------<a name="line.60"></a>
<span class="sourceLineNo">061</span> * 06-Mar-2006 : Fix for bug 1448828, incorrect calculation of week and year<a name="line.61"></a>
<span class="sourceLineNo">062</span> *               for the first few days of some years (DG);<a name="line.62"></a>
<span class="sourceLineNo">063</span> * 05-Oct-2006 : Updated API docs (DG);<a name="line.63"></a>
<span class="sourceLineNo">064</span> * 06-Oct-2006 : Refactored to cache first and last millisecond values (DG);<a name="line.64"></a>
<span class="sourceLineNo">065</span> * 09-Jan-2007 : Fixed bug in next() (DG);<a name="line.65"></a>
<span class="sourceLineNo">066</span> * 28-Aug-2007 : Added new constructor to avoid problem in creating new<a name="line.66"></a>
<span class="sourceLineNo">067</span> *               instances (DG);<a name="line.67"></a>
<span class="sourceLineNo">068</span> * 19-Dec-2007 : Fixed bug in deprecated constructor (DG);<a name="line.68"></a>
<span class="sourceLineNo">069</span> * 16-Sep-2008 : Deprecated DEFAULT_TIME_ZONE (DG);<a name="line.69"></a>
<span class="sourceLineNo">070</span> *<a name="line.70"></a>
<span class="sourceLineNo">071</span> */<a name="line.71"></a>
<span class="sourceLineNo">072</span><a name="line.72"></a>
<span class="sourceLineNo">073</span>package org.jfree.data.time;<a name="line.73"></a>
<span class="sourceLineNo">074</span><a name="line.74"></a>
<span class="sourceLineNo">075</span>import java.io.Serializable;<a name="line.75"></a>
<span class="sourceLineNo">076</span>import java.util.Calendar;<a name="line.76"></a>
<span class="sourceLineNo">077</span>import java.util.Date;<a name="line.77"></a>
<span class="sourceLineNo">078</span>import java.util.Locale;<a name="line.78"></a>
<span class="sourceLineNo">079</span>import java.util.TimeZone;<a name="line.79"></a>
<span class="sourceLineNo">080</span><a name="line.80"></a>
<span class="sourceLineNo">081</span>/**<a name="line.81"></a>
<span class="sourceLineNo">082</span> * A calendar week.  All years are considered to have 53 weeks, numbered from 1<a name="line.82"></a>
<span class="sourceLineNo">083</span> * to 53, although in many cases the 53rd week is empty.  Most of the time, the<a name="line.83"></a>
<span class="sourceLineNo">084</span> * 1st week of the year *begins* in the previous calendar year, but it always<a name="line.84"></a>
<span class="sourceLineNo">085</span> * finishes in the current year (this behaviour matches the workings of the<a name="line.85"></a>
<span class="sourceLineNo">086</span> * &lt;code&gt;GregorianCalendar&lt;/code&gt; class).<a name="line.86"></a>
<span class="sourceLineNo">087</span> * &lt;P&gt;<a name="line.87"></a>
<span class="sourceLineNo">088</span> * This class is immutable, which is a requirement for all<a name="line.88"></a>
<span class="sourceLineNo">089</span> * {@link RegularTimePeriod} subclasses.<a name="line.89"></a>
<span class="sourceLineNo">090</span> */<a name="line.90"></a>
<span class="sourceLineNo">091</span>public class Week extends RegularTimePeriod implements Serializable {<a name="line.91"></a>
<span class="sourceLineNo">092</span><a name="line.92"></a>
<span class="sourceLineNo">093</span>    /** For serialization. */<a name="line.93"></a>
<span class="sourceLineNo">094</span>    private static final long serialVersionUID = 1856387786939865061L;<a name="line.94"></a>
<span class="sourceLineNo">095</span><a name="line.95"></a>
<span class="sourceLineNo">096</span>    /** Constant for the first week in the year. */<a name="line.96"></a>
<span class="sourceLineNo">097</span>    public static final int FIRST_WEEK_IN_YEAR = 1;<a name="line.97"></a>
<span class="sourceLineNo">098</span><a name="line.98"></a>
<span class="sourceLineNo">099</span>    /** Constant for the last week in the year. */<a name="line.99"></a>
<span class="sourceLineNo">100</span>    public static final int LAST_WEEK_IN_YEAR = 53;<a name="line.100"></a>
<span class="sourceLineNo">101</span><a name="line.101"></a>
<span class="sourceLineNo">102</span>    /** The year in which the week falls. */<a name="line.102"></a>
<span class="sourceLineNo">103</span>    private short year;<a name="line.103"></a>
<span class="sourceLineNo">104</span><a name="line.104"></a>
<span class="sourceLineNo">105</span>    /** The week (1-53). */<a name="line.105"></a>
<span class="sourceLineNo">106</span>    private byte week;<a name="line.106"></a>
<span class="sourceLineNo">107</span><a name="line.107"></a>
<span class="sourceLineNo">108</span>    /** The first millisecond. */<a name="line.108"></a>
<span class="sourceLineNo">109</span>    private long firstMillisecond;<a name="line.109"></a>
<span class="sourceLineNo">110</span><a name="line.110"></a>
<span class="sourceLineNo">111</span>    /** The last millisecond. */<a name="line.111"></a>
<span class="sourceLineNo">112</span>    private long lastMillisecond;<a name="line.112"></a>
<span class="sourceLineNo">113</span><a name="line.113"></a>
<span class="sourceLineNo">114</span>    /**<a name="line.114"></a>
<span class="sourceLineNo">115</span>     * Creates a new time period for the week in which the current system<a name="line.115"></a>
<span class="sourceLineNo">116</span>     * date/time falls.<a name="line.116"></a>
<span class="sourceLineNo">117</span>     */<a name="line.117"></a>
<span class="sourceLineNo">118</span>    public Week() {<a name="line.118"></a>
<span class="sourceLineNo">119</span>        this(new Date());<a name="line.119"></a>
<span class="sourceLineNo">120</span>    }<a name="line.120"></a>
<span class="sourceLineNo">121</span><a name="line.121"></a>
<span class="sourceLineNo">122</span>    /**<a name="line.122"></a>
<span class="sourceLineNo">123</span>     * Creates a time period representing the week in the specified year.<a name="line.123"></a>
<span class="sourceLineNo">124</span>     *<a name="line.124"></a>
<span class="sourceLineNo">125</span>     * @param week  the week (1 to 53).<a name="line.125"></a>
<span class="sourceLineNo">126</span>     * @param year  the year (1900 to 9999).<a name="line.126"></a>
<span class="sourceLineNo">127</span>     */<a name="line.127"></a>
<span class="sourceLineNo">128</span>    public Week(int week, int year) {<a name="line.128"></a>
<span class="sourceLineNo">129</span>        if ((week &lt; FIRST_WEEK_IN_YEAR) &amp;&amp; (week &gt; LAST_WEEK_IN_YEAR)) {<a name="line.129"></a>
<span class="sourceLineNo">130</span>            throw new IllegalArgumentException(<a name="line.130"></a>
<span class="sourceLineNo">131</span>                    "The 'week' argument must be in the range 1 - 53.");<a name="line.131"></a>
<span class="sourceLineNo">132</span>        }<a name="line.132"></a>
<span class="sourceLineNo">133</span>        this.week = (byte) week;<a name="line.133"></a>
<span class="sourceLineNo">134</span>        this.year = (short) year;<a name="line.134"></a>
<span class="sourceLineNo">135</span>        peg(Calendar.getInstance());<a name="line.135"></a>
<span class="sourceLineNo">136</span>    }<a name="line.136"></a>
<span class="sourceLineNo">137</span><a name="line.137"></a>
<span class="sourceLineNo">138</span>    /**<a name="line.138"></a>
<span class="sourceLineNo">139</span>     * Creates a time period representing the week in the specified year.<a name="line.139"></a>
<span class="sourceLineNo">140</span>     *<a name="line.140"></a>
<span class="sourceLineNo">141</span>     * @param week  the week (1 to 53).<a name="line.141"></a>
<span class="sourceLineNo">142</span>     * @param year  the year (1900 to 9999).<a name="line.142"></a>
<span class="sourceLineNo">143</span>     */<a name="line.143"></a>
<span class="sourceLineNo">144</span>    public Week(int week, Year year) {<a name="line.144"></a>
<span class="sourceLineNo">145</span>        if ((week &lt; FIRST_WEEK_IN_YEAR) &amp;&amp; (week &gt; LAST_WEEK_IN_YEAR)) {<a name="line.145"></a>
<span class="sourceLineNo">146</span>            throw new IllegalArgumentException(<a name="line.146"></a>
<span class="sourceLineNo">147</span>                    "The 'week' argument must be in the range 1 - 53.");<a name="line.147"></a>
<span class="sourceLineNo">148</span>        }<a name="line.148"></a>
<span class="sourceLineNo">149</span>        this.week = (byte) week;<a name="line.149"></a>
<span class="sourceLineNo">150</span>        this.year = (short) year.getYear();<a name="line.150"></a>
<span class="sourceLineNo">151</span>        peg(Calendar.getInstance());<a name="line.151"></a>
<span class="sourceLineNo">152</span>   }<a name="line.152"></a>
<span class="sourceLineNo">153</span><a name="line.153"></a>
<span class="sourceLineNo">154</span>    /**<a name="line.154"></a>
<span class="sourceLineNo">155</span>     * Creates a time period for the week in which the specified date/time<a name="line.155"></a>
<span class="sourceLineNo">156</span>     * falls, using the default time zone and locale (the locale can affect the<a name="line.156"></a>
<span class="sourceLineNo">157</span>     * day-of-the-week that marks the beginning of the week, as well as the<a name="line.157"></a>
<span class="sourceLineNo">158</span>     * minimal number of days in the first week of the year).<a name="line.158"></a>
<span class="sourceLineNo">159</span>     *<a name="line.159"></a>
<span class="sourceLineNo">160</span>     * @param time  the time (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.160"></a>
<span class="sourceLineNo">161</span>     *<a name="line.161"></a>
<span class="sourceLineNo">162</span>     * @see #Week(Date, TimeZone, Locale)<a name="line.162"></a>
<span class="sourceLineNo">163</span>     */<a name="line.163"></a>
<span class="sourceLineNo">164</span>    public Week(Date time) {<a name="line.164"></a>
<span class="sourceLineNo">165</span>        // defer argument checking...<a name="line.165"></a>
<span class="sourceLineNo">166</span>        this(time, TimeZone.getDefault(), Locale.getDefault());<a name="line.166"></a>
<span class="sourceLineNo">167</span>    }<a name="line.167"></a>
<span class="sourceLineNo">168</span><a name="line.168"></a>
<span class="sourceLineNo">169</span>    /**<a name="line.169"></a>
<span class="sourceLineNo">170</span>     * Creates a time period for the week in which the specified date/time<a name="line.170"></a>
<span class="sourceLineNo">171</span>     * falls, calculated relative to the specified time zone.<a name="line.171"></a>
<span class="sourceLineNo">172</span>     *<a name="line.172"></a>
<span class="sourceLineNo">173</span>     * @param time  the date/time (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.173"></a>
<span class="sourceLineNo">174</span>     * @param zone  the time zone (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.174"></a>
<span class="sourceLineNo">175</span>     *<a name="line.175"></a>
<span class="sourceLineNo">176</span>     * @deprecated As of 1.0.7, use {@link #Week(Date, TimeZone, Locale)}.<a name="line.176"></a>
<span class="sourceLineNo">177</span>     */<a name="line.177"></a>
<span class="sourceLineNo">178</span>    public Week(Date time, TimeZone zone) {<a name="line.178"></a>
<span class="sourceLineNo">179</span>        // defer argument checking...<a name="line.179"></a>
<span class="sourceLineNo">180</span>        this(time, zone, Locale.getDefault());<a name="line.180"></a>
<span class="sourceLineNo">181</span>    }<a name="line.181"></a>
<span class="sourceLineNo">182</span><a name="line.182"></a>
<span class="sourceLineNo">183</span>    /**<a name="line.183"></a>
<span class="sourceLineNo">184</span>     * Creates a time period for the week in which the specified date/time<a name="line.184"></a>
<span class="sourceLineNo">185</span>     * falls, calculated relative to the specified time zone.<a name="line.185"></a>
<span class="sourceLineNo">186</span>     *<a name="line.186"></a>
<span class="sourceLineNo">187</span>     * @param time  the date/time (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.187"></a>
<span class="sourceLineNo">188</span>     * @param zone  the time zone (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.188"></a>
<span class="sourceLineNo">189</span>     * @param locale  the locale (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.189"></a>
<span class="sourceLineNo">190</span>     *<a name="line.190"></a>
<span class="sourceLineNo">191</span>     * @since 1.0.7<a name="line.191"></a>
<span class="sourceLineNo">192</span>     */<a name="line.192"></a>
<span class="sourceLineNo">193</span>    public Week(Date time, TimeZone zone, Locale locale) {<a name="line.193"></a>
<span class="sourceLineNo">194</span>        if (time == null) {<a name="line.194"></a>
<span class="sourceLineNo">195</span>            throw new IllegalArgumentException("Null 'time' argument.");<a name="line.195"></a>
<span class="sourceLineNo">196</span>        }<a name="line.196"></a>
<span class="sourceLineNo">197</span>        if (zone == null) {<a name="line.197"></a>
<span class="sourceLineNo">198</span>            throw new IllegalArgumentException("Null 'zone' argument.");<a name="line.198"></a>
<span class="sourceLineNo">199</span>        }<a name="line.199"></a>
<span class="sourceLineNo">200</span>        if (locale == null) {<a name="line.200"></a>
<span class="sourceLineNo">201</span>            throw new IllegalArgumentException("Null 'locale' argument.");<a name="line.201"></a>
<span class="sourceLineNo">202</span>        }<a name="line.202"></a>
<span class="sourceLineNo">203</span>        Calendar calendar = Calendar.getInstance(zone, locale);<a name="line.203"></a>
<span class="sourceLineNo">204</span>        calendar.setTime(time);<a name="line.204"></a>
<span class="sourceLineNo">205</span><a name="line.205"></a>
<span class="sourceLineNo">206</span>        // sometimes the last few days of the year are considered to fall in<a name="line.206"></a>
<span class="sourceLineNo">207</span>        // the *first* week of the following year.  Refer to the Javadocs for<a name="line.207"></a>
<span class="sourceLineNo">208</span>        // GregorianCalendar.<a name="line.208"></a>
<span class="sourceLineNo">209</span>        int tempWeek = calendar.get(Calendar.WEEK_OF_YEAR);<a name="line.209"></a>
<span class="sourceLineNo">210</span>        if (tempWeek == 1<a name="line.210"></a>
<span class="sourceLineNo">211</span>                &amp;&amp; calendar.get(Calendar.MONTH) == Calendar.DECEMBER) {<a name="line.211"></a>
<span class="sourceLineNo">212</span>            this.week = 1;<a name="line.212"></a>
<span class="sourceLineNo">213</span>            this.year = (short) (calendar.get(Calendar.YEAR) + 1);<a name="line.213"></a>
<span class="sourceLineNo">214</span>        }<a name="line.214"></a>
<span class="sourceLineNo">215</span>        else {<a name="line.215"></a>
<span class="sourceLineNo">216</span>            this.week = (byte) Math.min(tempWeek, LAST_WEEK_IN_YEAR);<a name="line.216"></a>
<span class="sourceLineNo">217</span>            int yyyy = calendar.get(Calendar.YEAR);<a name="line.217"></a>
<span class="sourceLineNo">218</span>            // alternatively, sometimes the first few days of the year are<a name="line.218"></a>
<span class="sourceLineNo">219</span>            // considered to fall in the *last* week of the previous year...<a name="line.219"></a>
<span class="sourceLineNo">220</span>            if (calendar.get(Calendar.MONTH) == Calendar.JANUARY<a name="line.220"></a>
<span class="sourceLineNo">221</span>                    &amp;&amp; this.week &gt;= 52) {<a name="line.221"></a>
<span class="sourceLineNo">222</span>                yyyy--;<a name="line.222"></a>
<span class="sourceLineNo">223</span>            }<a name="line.223"></a>
<span class="sourceLineNo">224</span>            this.year = (short) yyyy;<a name="line.224"></a>
<span class="sourceLineNo">225</span>        }<a name="line.225"></a>
<span class="sourceLineNo">226</span>        peg(calendar);<a name="line.226"></a>
<span class="sourceLineNo">227</span>    }<a name="line.227"></a>
<span class="sourceLineNo">228</span><a name="line.228"></a>
<span class="sourceLineNo">229</span>    /**<a name="line.229"></a>
<span class="sourceLineNo">230</span>     * Returns the year in which the week falls.<a name="line.230"></a>
<span class="sourceLineNo">231</span>     *<a name="line.231"></a>
<span class="sourceLineNo">232</span>     * @return The year (never &lt;code&gt;null&lt;/code&gt;).<a name="line.232"></a>
<span class="sourceLineNo">233</span>     */<a name="line.233"></a>
<span class="sourceLineNo">234</span>    public Year getYear() {<a name="line.234"></a>
<span class="sourceLineNo">235</span>        return new Year(this.year);<a name="line.235"></a>
<span class="sourceLineNo">236</span>    }<a name="line.236"></a>
<span class="sourceLineNo">237</span><a name="line.237"></a>
<span class="sourceLineNo">238</span>    /**<a name="line.238"></a>
<span class="sourceLineNo">239</span>     * Returns the year in which the week falls, as an integer value.<a name="line.239"></a>
<span class="sourceLineNo">240</span>     *<a name="line.240"></a>
<span class="sourceLineNo">241</span>     * @return The year.<a name="line.241"></a>
<span class="sourceLineNo">242</span>     */<a name="line.242"></a>
<span class="sourceLineNo">243</span>    public int getYearValue() {<a name="line.243"></a>
<span class="sourceLineNo">244</span>        return this.year;<a name="line.244"></a>
<span class="sourceLineNo">245</span>    }<a name="line.245"></a>
<span class="sourceLineNo">246</span><a name="line.246"></a>
<span class="sourceLineNo">247</span>    /**<a name="line.247"></a>
<span class="sourceLineNo">248</span>     * Returns the week.<a name="line.248"></a>
<span class="sourceLineNo">249</span>     *<a name="line.249"></a>
<span class="sourceLineNo">250</span>     * @return The week.<a name="line.250"></a>
<span class="sourceLineNo">251</span>     */<a name="line.251"></a>
<span class="sourceLineNo">252</span>    public int getWeek() {<a name="line.252"></a>
<span class="sourceLineNo">253</span>        return this.week;<a name="line.253"></a>
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<span class="sourceLineNo">255</span><a name="line.255"></a>
<span class="sourceLineNo">256</span>    /**<a name="line.256"></a>
<span class="sourceLineNo">257</span>     * Returns the first millisecond of the week.  This will be determined<a name="line.257"></a>
<span class="sourceLineNo">258</span>     * relative to the time zone specified in the constructor, or in the<a name="line.258"></a>
<span class="sourceLineNo">259</span>     * calendar instance passed in the most recent call to the<a name="line.259"></a>
<span class="sourceLineNo">260</span>     * {@link #peg(Calendar)} method.<a name="line.260"></a>
<span class="sourceLineNo">261</span>     *<a name="line.261"></a>
<span class="sourceLineNo">262</span>     * @return The first millisecond of the week.<a name="line.262"></a>
<span class="sourceLineNo">263</span>     *<a name="line.263"></a>
<span class="sourceLineNo">264</span>     * @see #getLastMillisecond()<a name="line.264"></a>
<span class="sourceLineNo">265</span>     */<a name="line.265"></a>
<span class="sourceLineNo">266</span>    public long getFirstMillisecond() {<a name="line.266"></a>
<span class="sourceLineNo">267</span>        return this.firstMillisecond;<a name="line.267"></a>
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<span class="sourceLineNo">269</span><a name="line.269"></a>
<span class="sourceLineNo">270</span>    /**<a name="line.270"></a>
<span class="sourceLineNo">271</span>     * Returns the last millisecond of the week.  This will be<a name="line.271"></a>
<span class="sourceLineNo">272</span>     * determined relative to the time zone specified in the constructor, or<a name="line.272"></a>
<span class="sourceLineNo">273</span>     * in the calendar instance passed in the most recent call to the<a name="line.273"></a>
<span class="sourceLineNo">274</span>     * {@link #peg(Calendar)} method.<a name="line.274"></a>
<span class="sourceLineNo">275</span>     *<a name="line.275"></a>
<span class="sourceLineNo">276</span>     * @return The last millisecond of the week.<a name="line.276"></a>
<span class="sourceLineNo">277</span>     *<a name="line.277"></a>
<span class="sourceLineNo">278</span>     * @see #getFirstMillisecond()<a name="line.278"></a>
<span class="sourceLineNo">279</span>     */<a name="line.279"></a>
<span class="sourceLineNo">280</span>    public long getLastMillisecond() {<a name="line.280"></a>
<span class="sourceLineNo">281</span>        return this.lastMillisecond;<a name="line.281"></a>
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<span class="sourceLineNo">283</span><a name="line.283"></a>
<span class="sourceLineNo">284</span>    /**<a name="line.284"></a>
<span class="sourceLineNo">285</span>     * Recalculates the start date/time and end date/time for this time period<a name="line.285"></a>
<span class="sourceLineNo">286</span>     * relative to the supplied calendar (which incorporates a time zone).<a name="line.286"></a>
<span class="sourceLineNo">287</span>     *<a name="line.287"></a>
<span class="sourceLineNo">288</span>     * @param calendar  the calendar (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.288"></a>
<span class="sourceLineNo">289</span>     *<a name="line.289"></a>
<span class="sourceLineNo">290</span>     * @since 1.0.3<a name="line.290"></a>
<span class="sourceLineNo">291</span>     */<a name="line.291"></a>
<span class="sourceLineNo">292</span>    public void peg(Calendar calendar) {<a name="line.292"></a>
<span class="sourceLineNo">293</span>        this.firstMillisecond = getFirstMillisecond(calendar);<a name="line.293"></a>
<span class="sourceLineNo">294</span>        this.lastMillisecond = getLastMillisecond(calendar);<a name="line.294"></a>
<span class="sourceLineNo">295</span>    }<a name="line.295"></a>
<span class="sourceLineNo">296</span><a name="line.296"></a>
<span class="sourceLineNo">297</span>    /**<a name="line.297"></a>
<span class="sourceLineNo">298</span>     * Returns the week preceding this one.  This method will return<a name="line.298"></a>
<span class="sourceLineNo">299</span>     * &lt;code&gt;null&lt;/code&gt; for some lower limit on the range of weeks (currently<a name="line.299"></a>
<span class="sourceLineNo">300</span>     * week 1, 1900).  For week 1 of any year, the previous week is always week<a name="line.300"></a>
<span class="sourceLineNo">301</span>     * 53, but week 53 may not contain any days (you should check for this).<a name="line.301"></a>
<span class="sourceLineNo">302</span>     *<a name="line.302"></a>
<span class="sourceLineNo">303</span>     * @return The preceding week (possibly &lt;code&gt;null&lt;/code&gt;).<a name="line.303"></a>
<span class="sourceLineNo">304</span>     */<a name="line.304"></a>
<span class="sourceLineNo">305</span>    public RegularTimePeriod previous() {<a name="line.305"></a>
<span class="sourceLineNo">306</span><a name="line.306"></a>
<span class="sourceLineNo">307</span>        Week result;<a name="line.307"></a>
<span class="sourceLineNo">308</span>        if (this.week != FIRST_WEEK_IN_YEAR) {<a name="line.308"></a>
<span class="sourceLineNo">309</span>            result = new Week(this.week - 1, this.year);<a name="line.309"></a>
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<span class="sourceLineNo">311</span>        else {<a name="line.311"></a>
<span class="sourceLineNo">312</span>            // we need to work out if the previous year has 52 or 53 weeks...<a name="line.312"></a>
<span class="sourceLineNo">313</span>            if (this.year &gt; 1900) {<a name="line.313"></a>
<span class="sourceLineNo">314</span>                int yy = this.year - 1;<a name="line.314"></a>
<span class="sourceLineNo">315</span>                Calendar prevYearCalendar = Calendar.getInstance();<a name="line.315"></a>
<span class="sourceLineNo">316</span>                prevYearCalendar.set(yy, Calendar.DECEMBER, 31);<a name="line.316"></a>
<span class="sourceLineNo">317</span>                result = new Week(prevYearCalendar.getActualMaximum(<a name="line.317"></a>
<span class="sourceLineNo">318</span>                        Calendar.WEEK_OF_YEAR), yy);<a name="line.318"></a>
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<span class="sourceLineNo">321</span>                result = null;<a name="line.321"></a>
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<span class="sourceLineNo">323</span>        }<a name="line.323"></a>
<span class="sourceLineNo">324</span>        return result;<a name="line.324"></a>
<span class="sourceLineNo">325</span><a name="line.325"></a>
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<span class="sourceLineNo">327</span><a name="line.327"></a>
<span class="sourceLineNo">328</span>    /**<a name="line.328"></a>
<span class="sourceLineNo">329</span>     * Returns the week following this one.  This method will return<a name="line.329"></a>
<span class="sourceLineNo">330</span>     * &lt;code&gt;null&lt;/code&gt; for some upper limit on the range of weeks (currently<a name="line.330"></a>
<span class="sourceLineNo">331</span>     * week 53, 9999).  For week 52 of any year, the following week is always<a name="line.331"></a>
<span class="sourceLineNo">332</span>     * week 53, but week 53 may not contain any days (you should check for<a name="line.332"></a>
<span class="sourceLineNo">333</span>     * this).<a name="line.333"></a>
<span class="sourceLineNo">334</span>     *<a name="line.334"></a>
<span class="sourceLineNo">335</span>     * @return The following week (possibly &lt;code&gt;null&lt;/code&gt;).<a name="line.335"></a>
<span class="sourceLineNo">336</span>     */<a name="line.336"></a>
<span class="sourceLineNo">337</span>    public RegularTimePeriod next() {<a name="line.337"></a>
<span class="sourceLineNo">338</span><a name="line.338"></a>
<span class="sourceLineNo">339</span>        Week result;<a name="line.339"></a>
<span class="sourceLineNo">340</span>        if (this.week &lt; 52) {<a name="line.340"></a>
<span class="sourceLineNo">341</span>            result = new Week(this.week + 1, this.year);<a name="line.341"></a>
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<span class="sourceLineNo">344</span>            Calendar calendar = Calendar.getInstance();<a name="line.344"></a>
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<span class="sourceLineNo">346</span>            int actualMaxWeek<a name="line.346"></a>
<span class="sourceLineNo">347</span>                = calendar.getActualMaximum(Calendar.WEEK_OF_YEAR);<a name="line.347"></a>
<span class="sourceLineNo">348</span>            if (this.week &lt; actualMaxWeek) {<a name="line.348"></a>
<span class="sourceLineNo">349</span>                result = new Week(this.week + 1, this.year);<a name="line.349"></a>
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<span class="sourceLineNo">351</span>            else {<a name="line.351"></a>
<span class="sourceLineNo">352</span>                if (this.year &lt; 9999) {<a name="line.352"></a>
<span class="sourceLineNo">353</span>                    result = new Week(FIRST_WEEK_IN_YEAR, this.year + 1);<a name="line.353"></a>
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<span class="sourceLineNo">355</span>                else {<a name="line.355"></a>
<span class="sourceLineNo">356</span>                    result = null;<a name="line.356"></a>
<span class="sourceLineNo">357</span>                }<a name="line.357"></a>
<span class="sourceLineNo">358</span>            }<a name="line.358"></a>
<span class="sourceLineNo">359</span>        }<a name="line.359"></a>
<span class="sourceLineNo">360</span>        return result;<a name="line.360"></a>
<span class="sourceLineNo">361</span><a name="line.361"></a>
<span class="sourceLineNo">362</span>    }<a name="line.362"></a>
<span class="sourceLineNo">363</span><a name="line.363"></a>
<span class="sourceLineNo">364</span>    /**<a name="line.364"></a>
<span class="sourceLineNo">365</span>     * Returns a serial index number for the week.<a name="line.365"></a>
<span class="sourceLineNo">366</span>     *<a name="line.366"></a>
<span class="sourceLineNo">367</span>     * @return The serial index number.<a name="line.367"></a>
<span class="sourceLineNo">368</span>     */<a name="line.368"></a>
<span class="sourceLineNo">369</span>    public long getSerialIndex() {<a name="line.369"></a>
<span class="sourceLineNo">370</span>        return this.year * 53L + this.week;<a name="line.370"></a>
<span class="sourceLineNo">371</span>    }<a name="line.371"></a>
<span class="sourceLineNo">372</span><a name="line.372"></a>
<span class="sourceLineNo">373</span>    /**<a name="line.373"></a>
<span class="sourceLineNo">374</span>     * Returns the first millisecond of the week, evaluated using the supplied<a name="line.374"></a>
<span class="sourceLineNo">375</span>     * calendar (which determines the time zone).<a name="line.375"></a>
<span class="sourceLineNo">376</span>     *<a name="line.376"></a>
<span class="sourceLineNo">377</span>     * @param calendar  the calendar (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.377"></a>
<span class="sourceLineNo">378</span>     *<a name="line.378"></a>
<span class="sourceLineNo">379</span>     * @return The first millisecond of the week.<a name="line.379"></a>
<span class="sourceLineNo">380</span>     *<a name="line.380"></a>
<span class="sourceLineNo">381</span>     * @throws NullPointerException if &lt;code&gt;calendar&lt;/code&gt; is<a name="line.381"></a>
<span class="sourceLineNo">382</span>     *     &lt;code&gt;null&lt;/code&gt;.<a name="line.382"></a>
<span class="sourceLineNo">383</span>     */<a name="line.383"></a>
<span class="sourceLineNo">384</span>    public long getFirstMillisecond(Calendar calendar) {<a name="line.384"></a>
<span class="sourceLineNo">385</span>        Calendar c = (Calendar) calendar.clone();<a name="line.385"></a>
<span class="sourceLineNo">386</span>        c.clear();<a name="line.386"></a>
<span class="sourceLineNo">387</span>        c.set(Calendar.YEAR, this.year);<a name="line.387"></a>
<span class="sourceLineNo">388</span>        c.set(Calendar.WEEK_OF_YEAR, this.week);<a name="line.388"></a>
<span class="sourceLineNo">389</span>        c.set(Calendar.DAY_OF_WEEK, c.getFirstDayOfWeek());<a name="line.389"></a>
<span class="sourceLineNo">390</span>        c.set(Calendar.HOUR, 0);<a name="line.390"></a>
<span class="sourceLineNo">391</span>        c.set(Calendar.MINUTE, 0);<a name="line.391"></a>
<span class="sourceLineNo">392</span>        c.set(Calendar.SECOND, 0);<a name="line.392"></a>
<span class="sourceLineNo">393</span>        c.set(Calendar.MILLISECOND, 0);<a name="line.393"></a>
<span class="sourceLineNo">394</span>        //return c.getTimeInMillis();  // this won't work for JDK 1.3<a name="line.394"></a>
<span class="sourceLineNo">395</span>        return c.getTime().getTime();<a name="line.395"></a>
<span class="sourceLineNo">396</span>    }<a name="line.396"></a>
<span class="sourceLineNo">397</span><a name="line.397"></a>
<span class="sourceLineNo">398</span>    /**<a name="line.398"></a>
<span class="sourceLineNo">399</span>     * Returns the last millisecond of the week, evaluated using the supplied<a name="line.399"></a>
<span class="sourceLineNo">400</span>     * calendar (which determines the time zone).<a name="line.400"></a>
<span class="sourceLineNo">401</span>     *<a name="line.401"></a>
<span class="sourceLineNo">402</span>     * @param calendar  the calendar (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.402"></a>
<span class="sourceLineNo">403</span>     *<a name="line.403"></a>
<span class="sourceLineNo">404</span>     * @return The last millisecond of the week.<a name="line.404"></a>
<span class="sourceLineNo">405</span>     *<a name="line.405"></a>
<span class="sourceLineNo">406</span>     * @throws NullPointerException if &lt;code&gt;calendar&lt;/code&gt; is<a name="line.406"></a>
<span class="sourceLineNo">407</span>     *     &lt;code&gt;null&lt;/code&gt;.<a name="line.407"></a>
<span class="sourceLineNo">408</span>     */<a name="line.408"></a>
<span class="sourceLineNo">409</span>    public long getLastMillisecond(Calendar calendar) {<a name="line.409"></a>
<span class="sourceLineNo">410</span>        Calendar c = (Calendar) calendar.clone();<a name="line.410"></a>
<span class="sourceLineNo">411</span>        c.clear();<a name="line.411"></a>
<span class="sourceLineNo">412</span>        c.set(Calendar.YEAR, this.year);<a name="line.412"></a>
<span class="sourceLineNo">413</span>        c.set(Calendar.WEEK_OF_YEAR, this.week + 1);<a name="line.413"></a>
<span class="sourceLineNo">414</span>        c.set(Calendar.DAY_OF_WEEK, c.getFirstDayOfWeek());<a name="line.414"></a>
<span class="sourceLineNo">415</span>        c.set(Calendar.HOUR, 0);<a name="line.415"></a>
<span class="sourceLineNo">416</span>        c.set(Calendar.MINUTE, 0);<a name="line.416"></a>
<span class="sourceLineNo">417</span>        c.set(Calendar.SECOND, 0);<a name="line.417"></a>
<span class="sourceLineNo">418</span>        c.set(Calendar.MILLISECOND, 0);<a name="line.418"></a>
<span class="sourceLineNo">419</span>        //return c.getTimeInMillis();  // this won't work for JDK 1.3<a name="line.419"></a>
<span class="sourceLineNo">420</span>        return c.getTime().getTime() - 1;<a name="line.420"></a>
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<span class="sourceLineNo">422</span><a name="line.422"></a>
<span class="sourceLineNo">423</span>    /**<a name="line.423"></a>
<span class="sourceLineNo">424</span>     * Returns a string representing the week (e.g. "Week 9, 2002").<a name="line.424"></a>
<span class="sourceLineNo">425</span>     *<a name="line.425"></a>
<span class="sourceLineNo">426</span>     * TODO: look at internationalisation.<a name="line.426"></a>
<span class="sourceLineNo">427</span>     *<a name="line.427"></a>
<span class="sourceLineNo">428</span>     * @return A string representing the week.<a name="line.428"></a>
<span class="sourceLineNo">429</span>     */<a name="line.429"></a>
<span class="sourceLineNo">430</span>    public String toString() {<a name="line.430"></a>
<span class="sourceLineNo">431</span>        return "Week " + this.week + ", " + this.year;<a name="line.431"></a>
<span class="sourceLineNo">432</span>    }<a name="line.432"></a>
<span class="sourceLineNo">433</span><a name="line.433"></a>
<span class="sourceLineNo">434</span>    /**<a name="line.434"></a>
<span class="sourceLineNo">435</span>     * Tests the equality of this Week object to an arbitrary object.  Returns<a name="line.435"></a>
<span class="sourceLineNo">436</span>     * true if the target is a Week instance representing the same week as this<a name="line.436"></a>
<span class="sourceLineNo">437</span>     * object.  In all other cases, returns false.<a name="line.437"></a>
<span class="sourceLineNo">438</span>     *<a name="line.438"></a>
<span class="sourceLineNo">439</span>     * @param obj  the object (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.439"></a>
<span class="sourceLineNo">440</span>     *<a name="line.440"></a>
<span class="sourceLineNo">441</span>     * @return &lt;code&gt;true&lt;/code&gt; if week and year of this and object are the<a name="line.441"></a>
<span class="sourceLineNo">442</span>     *         same.<a name="line.442"></a>
<span class="sourceLineNo">443</span>     */<a name="line.443"></a>
<span class="sourceLineNo">444</span>    public boolean equals(Object obj) {<a name="line.444"></a>
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<span class="sourceLineNo">447</span>            return true;<a name="line.447"></a>
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<span class="sourceLineNo">449</span>        if (!(obj instanceof Week)) {<a name="line.449"></a>
<span class="sourceLineNo">450</span>            return false;<a name="line.450"></a>
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<span class="sourceLineNo">452</span>        Week that = (Week) obj;<a name="line.452"></a>
<span class="sourceLineNo">453</span>        if (this.week != that.week) {<a name="line.453"></a>
<span class="sourceLineNo">454</span>            return false;<a name="line.454"></a>
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<span class="sourceLineNo">456</span>        if (this.year != that.year) {<a name="line.456"></a>
<span class="sourceLineNo">457</span>            return false;<a name="line.457"></a>
<span class="sourceLineNo">458</span>        }<a name="line.458"></a>
<span class="sourceLineNo">459</span>        return true;<a name="line.459"></a>
<span class="sourceLineNo">460</span><a name="line.460"></a>
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<span class="sourceLineNo">462</span><a name="line.462"></a>
<span class="sourceLineNo">463</span>    /**<a name="line.463"></a>
<span class="sourceLineNo">464</span>     * Returns a hash code for this object instance.  The approach described by<a name="line.464"></a>
<span class="sourceLineNo">465</span>     * Joshua Bloch in "Effective Java" has been used here:<a name="line.465"></a>
<span class="sourceLineNo">466</span>     * &lt;p&gt;<a name="line.466"></a>
<span class="sourceLineNo">467</span>     * &lt;code&gt;http://developer.java.sun.com/developer/Books/effectivejava<a name="line.467"></a>
<span class="sourceLineNo">468</span>     * /Chapter3.pdf&lt;/code&gt;<a name="line.468"></a>
<span class="sourceLineNo">469</span>     *<a name="line.469"></a>
<span class="sourceLineNo">470</span>     * @return A hash code.<a name="line.470"></a>
<span class="sourceLineNo">471</span>     */<a name="line.471"></a>
<span class="sourceLineNo">472</span>    public int hashCode() {<a name="line.472"></a>
<span class="sourceLineNo">473</span>        int result = 17;<a name="line.473"></a>
<span class="sourceLineNo">474</span>        result = 37 * result + this.week;<a name="line.474"></a>
<span class="sourceLineNo">475</span>        result = 37 * result + this.year;<a name="line.475"></a>
<span class="sourceLineNo">476</span>        return result;<a name="line.476"></a>
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<span class="sourceLineNo">478</span><a name="line.478"></a>
<span class="sourceLineNo">479</span>    /**<a name="line.479"></a>
<span class="sourceLineNo">480</span>     * Returns an integer indicating the order of this Week object relative to<a name="line.480"></a>
<span class="sourceLineNo">481</span>     * the specified object:<a name="line.481"></a>
<span class="sourceLineNo">482</span>     *<a name="line.482"></a>
<span class="sourceLineNo">483</span>     * negative == before, zero == same, positive == after.<a name="line.483"></a>
<span class="sourceLineNo">484</span>     *<a name="line.484"></a>
<span class="sourceLineNo">485</span>     * @param o1  the object to compare.<a name="line.485"></a>
<span class="sourceLineNo">486</span>     *<a name="line.486"></a>
<span class="sourceLineNo">487</span>     * @return negative == before, zero == same, positive == after.<a name="line.487"></a>
<span class="sourceLineNo">488</span>     */<a name="line.488"></a>
<span class="sourceLineNo">489</span>    public int compareTo(Object o1) {<a name="line.489"></a>
<span class="sourceLineNo">490</span><a name="line.490"></a>
<span class="sourceLineNo">491</span>        int result;<a name="line.491"></a>
<span class="sourceLineNo">492</span><a name="line.492"></a>
<span class="sourceLineNo">493</span>        // CASE 1 : Comparing to another Week object<a name="line.493"></a>
<span class="sourceLineNo">494</span>        // --------------------------------------------<a name="line.494"></a>
<span class="sourceLineNo">495</span>        if (o1 instanceof Week) {<a name="line.495"></a>
<span class="sourceLineNo">496</span>            Week w = (Week) o1;<a name="line.496"></a>
<span class="sourceLineNo">497</span>            result = this.year - w.getYear().getYear();<a name="line.497"></a>
<span class="sourceLineNo">498</span>            if (result == 0) {<a name="line.498"></a>
<span class="sourceLineNo">499</span>                result = this.week - w.getWeek();<a name="line.499"></a>
<span class="sourceLineNo">500</span>            }<a name="line.500"></a>
<span class="sourceLineNo">501</span>        }<a name="line.501"></a>
<span class="sourceLineNo">502</span><a name="line.502"></a>
<span class="sourceLineNo">503</span>        // CASE 2 : Comparing to another TimePeriod object<a name="line.503"></a>
<span class="sourceLineNo">504</span>        // -----------------------------------------------<a name="line.504"></a>
<span class="sourceLineNo">505</span>        else if (o1 instanceof RegularTimePeriod) {<a name="line.505"></a>
<span class="sourceLineNo">506</span>            // more difficult case - evaluate later...<a name="line.506"></a>
<span class="sourceLineNo">507</span>            result = 0;<a name="line.507"></a>
<span class="sourceLineNo">508</span>        }<a name="line.508"></a>
<span class="sourceLineNo">509</span><a name="line.509"></a>
<span class="sourceLineNo">510</span>        // CASE 3 : Comparing to a non-TimePeriod object<a name="line.510"></a>
<span class="sourceLineNo">511</span>        // ---------------------------------------------<a name="line.511"></a>
<span class="sourceLineNo">512</span>        else {<a name="line.512"></a>
<span class="sourceLineNo">513</span>            // consider time periods to be ordered after general objects<a name="line.513"></a>
<span class="sourceLineNo">514</span>            result = 1;<a name="line.514"></a>
<span class="sourceLineNo">515</span>        }<a name="line.515"></a>
<span class="sourceLineNo">516</span><a name="line.516"></a>
<span class="sourceLineNo">517</span>        return result;<a name="line.517"></a>
<span class="sourceLineNo">518</span><a name="line.518"></a>
<span class="sourceLineNo">519</span>    }<a name="line.519"></a>
<span class="sourceLineNo">520</span><a name="line.520"></a>
<span class="sourceLineNo">521</span>    /**<a name="line.521"></a>
<span class="sourceLineNo">522</span>     * Parses the string argument as a week.<a name="line.522"></a>
<span class="sourceLineNo">523</span>     * &lt;P&gt;<a name="line.523"></a>
<span class="sourceLineNo">524</span>     * This method is required to accept the format "YYYY-Wnn".  It will also<a name="line.524"></a>
<span class="sourceLineNo">525</span>     * accept "Wnn-YYYY". Anything else, at the moment, is a bonus.<a name="line.525"></a>
<span class="sourceLineNo">526</span>     *<a name="line.526"></a>
<span class="sourceLineNo">527</span>     * @param s  string to parse.<a name="line.527"></a>
<span class="sourceLineNo">528</span>     *<a name="line.528"></a>
<span class="sourceLineNo">529</span>     * @return &lt;code&gt;null&lt;/code&gt; if the string is not parseable, the week<a name="line.529"></a>
<span class="sourceLineNo">530</span>     *         otherwise.<a name="line.530"></a>
<span class="sourceLineNo">531</span>     */<a name="line.531"></a>
<span class="sourceLineNo">532</span>    public static Week parseWeek(String s) {<a name="line.532"></a>
<span class="sourceLineNo">533</span><a name="line.533"></a>
<span class="sourceLineNo">534</span>        Week result = null;<a name="line.534"></a>
<span class="sourceLineNo">535</span>        if (s != null) {<a name="line.535"></a>
<span class="sourceLineNo">536</span><a name="line.536"></a>
<span class="sourceLineNo">537</span>            // trim whitespace from either end of the string<a name="line.537"></a>
<span class="sourceLineNo">538</span>            s = s.trim();<a name="line.538"></a>
<span class="sourceLineNo">539</span><a name="line.539"></a>
<span class="sourceLineNo">540</span>            int i = Week.findSeparator(s);<a name="line.540"></a>
<span class="sourceLineNo">541</span>            if (i != -1) {<a name="line.541"></a>
<span class="sourceLineNo">542</span>                String s1 = s.substring(0, i).trim();<a name="line.542"></a>
<span class="sourceLineNo">543</span>                String s2 = s.substring(i + 1, s.length()).trim();<a name="line.543"></a>
<span class="sourceLineNo">544</span><a name="line.544"></a>
<span class="sourceLineNo">545</span>                Year y = Week.evaluateAsYear(s1);<a name="line.545"></a>
<span class="sourceLineNo">546</span>                int w;<a name="line.546"></a>
<span class="sourceLineNo">547</span>                if (y != null) {<a name="line.547"></a>
<span class="sourceLineNo">548</span>                    w = Week.stringToWeek(s2);<a name="line.548"></a>
<span class="sourceLineNo">549</span>                    if (w == -1) {<a name="line.549"></a>
<span class="sourceLineNo">550</span>                        throw new TimePeriodFormatException(<a name="line.550"></a>
<span class="sourceLineNo">551</span>                                "Can't evaluate the week.");<a name="line.551"></a>
<span class="sourceLineNo">552</span>                    }<a name="line.552"></a>
<span class="sourceLineNo">553</span>                    result = new Week(w, y);<a name="line.553"></a>
<span class="sourceLineNo">554</span>                }<a name="line.554"></a>
<span class="sourceLineNo">555</span>                else {<a name="line.555"></a>
<span class="sourceLineNo">556</span>                    y = Week.evaluateAsYear(s2);<a name="line.556"></a>
<span class="sourceLineNo">557</span>                    if (y != null) {<a name="line.557"></a>
<span class="sourceLineNo">558</span>                        w = Week.stringToWeek(s1);<a name="line.558"></a>
<span class="sourceLineNo">559</span>                        if (w == -1) {<a name="line.559"></a>
<span class="sourceLineNo">560</span>                            throw new TimePeriodFormatException(<a name="line.560"></a>
<span class="sourceLineNo">561</span>                                    "Can't evaluate the week.");<a name="line.561"></a>
<span class="sourceLineNo">562</span>                        }<a name="line.562"></a>
<span class="sourceLineNo">563</span>                        result = new Week(w, y);<a name="line.563"></a>
<span class="sourceLineNo">564</span>                    }<a name="line.564"></a>
<span class="sourceLineNo">565</span>                    else {<a name="line.565"></a>
<span class="sourceLineNo">566</span>                        throw new TimePeriodFormatException(<a name="line.566"></a>
<span class="sourceLineNo">567</span>                                "Can't evaluate the year.");<a name="line.567"></a>
<span class="sourceLineNo">568</span>                    }<a name="line.568"></a>
<span class="sourceLineNo">569</span>                }<a name="line.569"></a>
<span class="sourceLineNo">570</span><a name="line.570"></a>
<span class="sourceLineNo">571</span>            }<a name="line.571"></a>
<span class="sourceLineNo">572</span>            else {<a name="line.572"></a>
<span class="sourceLineNo">573</span>                throw new TimePeriodFormatException(<a name="line.573"></a>
<span class="sourceLineNo">574</span>                        "Could not find separator.");<a name="line.574"></a>
<span class="sourceLineNo">575</span>            }<a name="line.575"></a>
<span class="sourceLineNo">576</span><a name="line.576"></a>
<span class="sourceLineNo">577</span>        }<a name="line.577"></a>
<span class="sourceLineNo">578</span>        return result;<a name="line.578"></a>
<span class="sourceLineNo">579</span><a name="line.579"></a>
<span class="sourceLineNo">580</span>    }<a name="line.580"></a>
<span class="sourceLineNo">581</span><a name="line.581"></a>
<span class="sourceLineNo">582</span>    /**<a name="line.582"></a>
<span class="sourceLineNo">583</span>     * Finds the first occurrence of ' ', '-', ',' or '.'<a name="line.583"></a>
<span class="sourceLineNo">584</span>     *<a name="line.584"></a>
<span class="sourceLineNo">585</span>     * @param s  the string to parse.<a name="line.585"></a>
<span class="sourceLineNo">586</span>     *<a name="line.586"></a>
<span class="sourceLineNo">587</span>     * @return &lt;code&gt;-1&lt;/code&gt; if none of the characters was found, the<a name="line.587"></a>
<span class="sourceLineNo">588</span>     *      index of the first occurrence otherwise.<a name="line.588"></a>
<span class="sourceLineNo">589</span>     */<a name="line.589"></a>
<span class="sourceLineNo">590</span>    private static int findSeparator(String s) {<a name="line.590"></a>
<span class="sourceLineNo">591</span><a name="line.591"></a>
<span class="sourceLineNo">592</span>        int result = s.indexOf('-');<a name="line.592"></a>
<span class="sourceLineNo">593</span>        if (result == -1) {<a name="line.593"></a>
<span class="sourceLineNo">594</span>            result = s.indexOf(',');<a name="line.594"></a>
<span class="sourceLineNo">595</span>        }<a name="line.595"></a>
<span class="sourceLineNo">596</span>        if (result == -1) {<a name="line.596"></a>
<span class="sourceLineNo">597</span>            result = s.indexOf(' ');<a name="line.597"></a>
<span class="sourceLineNo">598</span>        }<a name="line.598"></a>
<span class="sourceLineNo">599</span>        if (result == -1) {<a name="line.599"></a>
<span class="sourceLineNo">600</span>            result = s.indexOf('.');<a name="line.600"></a>
<span class="sourceLineNo">601</span>        }<a name="line.601"></a>
<span class="sourceLineNo">602</span>        return result;<a name="line.602"></a>
<span class="sourceLineNo">603</span>    }<a name="line.603"></a>
<span class="sourceLineNo">604</span><a name="line.604"></a>
<span class="sourceLineNo">605</span>    /**<a name="line.605"></a>
<span class="sourceLineNo">606</span>     * Creates a year from a string, or returns null (format exceptions<a name="line.606"></a>
<span class="sourceLineNo">607</span>     * suppressed).<a name="line.607"></a>
<span class="sourceLineNo">608</span>     *<a name="line.608"></a>
<span class="sourceLineNo">609</span>     * @param s  string to parse.<a name="line.609"></a>
<span class="sourceLineNo">610</span>     *<a name="line.610"></a>
<span class="sourceLineNo">611</span>     * @return &lt;code&gt;null&lt;/code&gt; if the string is not parseable, the year<a name="line.611"></a>
<span class="sourceLineNo">612</span>     *         otherwise.<a name="line.612"></a>
<span class="sourceLineNo">613</span>     */<a name="line.613"></a>
<span class="sourceLineNo">614</span>    private static Year evaluateAsYear(String s) {<a name="line.614"></a>
<span class="sourceLineNo">615</span><a name="line.615"></a>
<span class="sourceLineNo">616</span>        Year result = null;<a name="line.616"></a>
<span class="sourceLineNo">617</span>        try {<a name="line.617"></a>
<span class="sourceLineNo">618</span>            result = Year.parseYear(s);<a name="line.618"></a>
<span class="sourceLineNo">619</span>        }<a name="line.619"></a>
<span class="sourceLineNo">620</span>        catch (TimePeriodFormatException e) {<a name="line.620"></a>
<span class="sourceLineNo">621</span>            // suppress<a name="line.621"></a>
<span class="sourceLineNo">622</span>        }<a name="line.622"></a>
<span class="sourceLineNo">623</span>        return result;<a name="line.623"></a>
<span class="sourceLineNo">624</span><a name="line.624"></a>
<span class="sourceLineNo">625</span>    }<a name="line.625"></a>
<span class="sourceLineNo">626</span><a name="line.626"></a>
<span class="sourceLineNo">627</span>    /**<a name="line.627"></a>
<span class="sourceLineNo">628</span>     * Converts a string to a week.<a name="line.628"></a>
<span class="sourceLineNo">629</span>     *<a name="line.629"></a>
<span class="sourceLineNo">630</span>     * @param s  the string to parse.<a name="line.630"></a>
<span class="sourceLineNo">631</span>     * @return &lt;code&gt;-1&lt;/code&gt; if the string does not contain a week number,<a name="line.631"></a>
<span class="sourceLineNo">632</span>     *         the number of the week otherwise.<a name="line.632"></a>
<span class="sourceLineNo">633</span>     */<a name="line.633"></a>
<span class="sourceLineNo">634</span>    private static int stringToWeek(String s) {<a name="line.634"></a>
<span class="sourceLineNo">635</span><a name="line.635"></a>
<span class="sourceLineNo">636</span>        int result = -1;<a name="line.636"></a>
<span class="sourceLineNo">637</span>        s = s.replace('W', ' ');<a name="line.637"></a>
<span class="sourceLineNo">638</span>        s = s.trim();<a name="line.638"></a>
<span class="sourceLineNo">639</span>        try {<a name="line.639"></a>
<span class="sourceLineNo">640</span>            result = Integer.parseInt(s);<a name="line.640"></a>
<span class="sourceLineNo">641</span>            if ((result &lt; 1) || (result &gt; LAST_WEEK_IN_YEAR)) {<a name="line.641"></a>
<span class="sourceLineNo">642</span>                result = -1;<a name="line.642"></a>
<span class="sourceLineNo">643</span>            }<a name="line.643"></a>
<span class="sourceLineNo">644</span>        }<a name="line.644"></a>
<span class="sourceLineNo">645</span>        catch (NumberFormatException e) {<a name="line.645"></a>
<span class="sourceLineNo">646</span>            // suppress<a name="line.646"></a>
<span class="sourceLineNo">647</span>        }<a name="line.647"></a>
<span class="sourceLineNo">648</span>        return result;<a name="line.648"></a>
<span class="sourceLineNo">649</span><a name="line.649"></a>
<span class="sourceLineNo">650</span>    }<a name="line.650"></a>
<span class="sourceLineNo">651</span><a name="line.651"></a>
<span class="sourceLineNo">652</span>}<a name="line.652"></a>




























































</pre>
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